Focus the mind and aggression and improve your cardio for fight night with our adjustable free-standing speed ball. Features durable rotating PU punch ball on sprung height adjustable chrome bar. The base is filled with water (or sand) to hold in place. Allows you to increase hand/eye co-ordination, timing and speed and conditioning. New Boxing Mad Adults Boxing Training Rotating Free Standing Speed Punch Ball. Focus the mind and aggression and improve your eye-hand coordination with our adjustable free-standing speed ball. Features durable rotating PU punch ball on sprung height adjustable chrome bar. The base is filled with water (or sand) to hold in place. Height 130-156cm. Base 60cm. Height adjusts from 130cm to 156cm. 21cm diameter PU Ball Limited assembly required with supplied tools. Packed size: 62 x 30 x 63cm. Weight unfilled 10Kg. Note: Some assembly required with supplied tools.